基于红外光声光谱的气体检测系统设计  

Design of gas detecting system based on infrared photoacoustic spectrum

作　　者：钱旭[1] 程明霄[1] 王雪花[1] 赵天琦 

机构地区：[1]南京工业大学自动化与电气工程学院,江苏南京210009 [2]南京灼徽检测技术有限公司,江苏南京210009

出　　处：《传感器与微系统》2014年第12期98-100,103,共4页Transducer and Microsystem Technologies

摘　　要：随着工业现代化的发展,环境变化日益复杂,而人民的环境健康意识也在不断提高。在这种情况下,传统的气体检测系统已不能满足要求,有待开发一种高灵敏度、高分辨率的新型实时气体检测系统。从气体分子红外光谱理论出发,在对当前各种气体检测方法进行分析比较的基础上,设计了一种基于光声光谱技术的气体检测系统。实验证明:该系统可有效进行CO_2气体检测。In recent years, with development of modem industry,increasing complexity of environmental change, and people ＇ s awareness of environmental health is improving. In this case, conventional gas detecting system can not meet requirements, pending the development of a high sensitivity, high resolution new type realtime gas detecting system. From gas molecules IR spectrum theory, and on the basis of comparison of current variety of gas detection method,study on a gas detecting system based on photoaeoustic spectrum（PAS） technology. Experiment verifies that this system can effectively carry out CO2 gas detection.

关 键 词：气体检测 高灵敏度 高分辨率 光声光谱 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]